Robo-check.cc, also known as Robocheck, is a clearnet site that provides a service called a SSN & DOB lookup. It was discovered in 2015 and quite a similar to darknet vendor shops in which personal information can be bought and sold.
https://500px.com/p/robocheck?view=photos
https://www.flickr.com/people/199964928@N06/
https://gravatar.com/akasanash